In order to use the email function in DeltaWMS, SMTP server details need to be configured for this to be successful.
These are configured under Warehouse Parameters - Advanced Email but will require a few connections details from the SMTP server such as;
Server
Port
Authentication Type (None, Basic or NTLM)
Username
Password
Sender's email
SSL used (True or False)
Once this information is confirmed, then the details can be configured in DeltaWMS.